The AIX Feedback Directed Program Restructuring Tool

The AIX Feedback Directed Program Restructuring Tool

Mark Ray Mark Ray

Mark Ray

Artificial Intelligence Research Center Administrator

发布日期: 2016年5月18日
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My second article this month in IBM Systems Magazine is about a little known, seldom used (by everybody except me) and yet extremely powerful performance utility called the FDPR or "Feedback Directed program Restructuring" tool. Its job is to optimize already-compiled code so that it not only runs faster but usually uses less Memory and CPU cycles. Have a look to learn a bit about this incredible resource:


 

 

 

Yordan Gaillard

Expert IBM AIX virtualisation en recherche passive

8 年

I love the "-O4" option! Same as when compiling Cprograms ?

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Yordan Gaillard

Expert IBM AIX virtualisation en recherche passive

8 年

Thanks for the info. And I love the "-O4" option!

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